Java catch block, caught exception is not final

Question

I am checking out the new features of Java SE7 and I am currently at this point:

http://docs.oracle.com/javase/7/docs/technotes/guides/language/catch-multiple.html

Answer 1

The idea behind exception-based error handling is that each error should be recovered, if at all possible, at the appropriate level of abstraction. Such error recovery might require information that is not directly available where the exception is actually handled. For this reason it might be convenient to catch the exception, augment it with the relevant information and rethrow it or possibly set it as cause of a new exception object of a more appropriate class.